Time Off in Lieu Of Overtime for time worked on Holidays

Hello

We do have a requirement where if an employee worked on a Holiday we need to entitle the employee with 1 day of time off absence quota for working on a holiday.

We use time evaluation with out clock time, a schema customized from TM04. We also currently generate other absence quota types in time evaluation.

The tricky thing with the new time off quota is. its valid for 1 year from the day of the holiday employee worked.

For example:

If an employee worked on a January 1st holiday (1/1/2010), then the quota should be valid form 1/1/2010 to 12/31/2010 and if the employee worked again on Independence day (7/5/2010), the quota entitled on this day should be valid from 7/5/2010 thru 7/4/2011.

I am aware of how to set this up if all have similar validity end date. But here every quota day accrued will have a different validity start end date depending on which holiday in the year the employee worked.

Can some one provide any input on how this can be handled.

Should i have a separate absence quota type for each Holiday worked (for example New year comp off, Independence day comp off) or can i stil manage it with one single quota type?

Thanks in advance